ESPN reports “Canada won’t send athletes to the Olympics in Tokyo unless the Games are postponed by one year, the country’s Olympic committee announced Sunday night amid concerns over the coronavirus pandemic.”

Following that announcement, ESPN reports the Australian Olympic Committee told its athletes to prepare for the 2020 Summer Games to be held in 2021.

The International Olympic Committee announced Sunday it will decide whether to postpone the Tokyo Olympics within the next four weeks. Before that, organizers had insisted the Olympics would not be postponed or canceled by COVID-19.

On Monday, ESPN reports Japanese Prime Minister Shinzo Abe said postponing the games could be “unavoidable.”

Last week, ESPN reports USA Swimming CEO Tim Hinchey wrote a letter calling for the games to be postponed for one year.

According to ESPN, USA Track & Field joined USA Swimming in calling for a postponement, with CEO Max Siegel writing a letter saying “it would be challenging for athletes to ‘properly train in a safe and adequate environment’ amid the worldwide coronavirus pandemic.”